Clean-out attachment for the retention pipe and retention valve of an air-brake system



Fehn g M. LEDESMA ET AL CLEANOUT ATTACHMENT FOR THE RETENTION PIPE AND RETENTION VALVE OF AN AIR BRAKE SYSTEM Original Filed August 4, 1924 Qwuentozo and: aq

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Patented Feb. 16, 1926.

UNITED STATES Partnr orifice.

MERCED LEDESMAAND ADOLFO ACOSTA., F EL PASO, TEXAS.

CLEAN-OUT ATTACHMENT FOR THE RETENTION PIPE AND RETENTION VALVE OF AN ARFBRAKE SYSTEM.

Application led August 4, 1924, Serial No. 729,996. Renewed November 30, 1925'.

T0 all whom t may concern.'

Be it known that we, MERCED LEDESMA and ADoLro Aoosrn, citizens of the United States, residingat El Paso, in the county of El Paso and State of Texas, have invented certain new and useful Improvements in a Clean-Out Attachment for the Retention Pipe and Retention Valve of an Air-Brake System, of which the following is a specifica-tion.

This invention relates to a means for cleaning out the retention pipes and the retention valves associated therewith of an air brake system and has for its principal object to provide a simple andeflicient device which may be readily and easily attaehed in position for use.

Another important object of the inven tion is to provide a clean-out attachment which is adapted to be connected at one end to the branch pipe of the train line and at its opposite end'to the retention pipe where- Vby a direct flow of compressed air will pass from the train line into the retention pipe for cleaning the same and the valve associated therewith in a comparatively simple and efficient manner.

A further object of the invention is to provide a clean out attachment of the above mentioned character, which is simple in construction, inexpensive, strong and durable and furthermore adapted for the purposes for which it is designated.

Other objects and advantages of this invention will become apparent during the course of the following description.

In the accompanying drawing forming a part of this specification and in which like numerals designate like parts throughout the same:

Figure 1 is a side elevation of our improved cleaner attachment showing the same in use, and l Figure 2 is a view partly in elevation and partly in section of the improved clean-out attachment.

Ordinarily the retention pipe of an air brake system has one end connected to the exhaust port of the triple valve 2 and the retention pipe 1 terminates in the upwardly disposed portion 3, the upper end of which carries the usual manually controlled retention valve 4f. As the construction of the retentionv valve may be of any well known type, well known in the art, a further detailed description thereof is not. thought nec` essary. The retention valve Ll is located at a point adjacent the top of each of the cars and the purpose of the retention pipe and the retention valve is to provide a means for retaining a working pressure in. the brake cylinder 5 of the air brake system while the auxiliary reservoir (3 is being recharged. rl"he amount of pressure retained in the brake cylinder depends upon the weight and load of the card. The train pipe of the air brake system is designated at 7 in the drawing and the same is connected to the triple valve 2 by means of the branch pipe 8 in the manner well known in the art.

For the purpose of cleaning or blowing out the retention pipe and the retention valve, we provide an attachment which conn prises a. tubular section of flexible material such as is illustrated at 9, a nipple 1 0 being arranged in one end of the flexible pipe 9 and adapted for communication with the branch pipe S when the vlatter is detached from the triple valve 2. A similar nipple 11 is arranged in the opposite end of the flexible pipe and has communication with a suitable union or coupling 12 which is adapted to be connected to the end of the retention pipe 1 after the same has been detached from the triple valve 2 in the manner clearly illustrated in Figure l of the drawing. It is of course understood that the nipples and 11 respectively are sup ported in the ends of the flexible pipe 9 by means of any suitable hose clamps or the like illustrated at 13.

`With the parts arranged as shown in Figure 1 of the drawing, the air under pressure passing through the train linc 7 will be discharged through the branch pipe 8, through the flexible hose line and through the retention pipe and/the retention valve associated with the upper end thereof. This will enable the retention pipe and valve to be readily and easily cleaned so that the same will be permitted to properly function when attached/to the exhaust port. of a triple valve 2 by means of the pipe 1l. A blow out attachment for cleaning the retention pipe and retention valve associated therewith may be readily and easily attached in position without the loss of any considerable length of time or labor and may furthermore be readily detached so as to enable the retention pipe to be ycom iected to the triple valve nected thereto.

The simplicity in which our device is constructed enables the samerto be manufactured at a very low cost and will at all times be positive and eliicient in carrying out the purposes for which the same is designed.

While we have shown the preferred .embodiment of our invention, itis to be understood that various changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit of the' claims. p n v Having thus described the invention, what we claim is 1. The combination with an air brake system including a train line and the retention pipe and retention valve associated therewith, 0f a connection between the train line and the retention pipe for forcing the air invention and the scope of the appended yunder pressure in the train line to the retention pipe and the retention valve for cleaning' out Jche same.

2. The combination with an air brake system including a train line and the retention pipe and vretention valve associated therewith, of a connection between the train line and the retention pipe for forcing` the air under pressure in the train line to the retention pipe and the retention valve for cleaning out the same, said connection comprising a iiexible hose detachabl)7 connected to the train line and the retention pipe at its respective ends. e

3. In combination with an air brake system including the retention pipe and the rotention valve associated therewith, of means for facilitating the cleaning out of the retention pipe` and the retention valve.

In testimony whereof we affix our signatures. y

MERCED LEDESMA. ADOLFO ACOSTA. 

